CGRG Bibliography of Canadian Geomorphology
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Author : Guillemette, F.
Date : 2002.
Title : Rainfall peak flow response and recovery after clearcutting.
Publication : Unpublished MSc thesis. Universite Laval, Quebec City.
Issue :
Page(s) : 78 p.
Abstract
The effect of clearcutting over 85% of a basin area (122 ha), located in the boreal forest at the Montmorency Forest (Quebec, Canada), on rainfall peak flows was evaluated. The mean increase at bankfull discharge was 54% for the 1994-98 period. Significant increases in specific peak flows were observed once the cut covered about 55% of the basin area. The literature on bankfull rainfall peak flows was analysed to precise how logging may affect peak flows, through soil disturbances and proportion of the area cut. The analysis, based on 25 published results, showed that soil disturbances were about seven times more important than the proportion cut to explain the change of rainfall bankfull peak flows from logging. Mean annual increases of peak flows at Montmorency Forest were compared to those of two basins in Brazil to draw the hydrologic recovery curve of peak flows from logging, but few more years would be necessary to validate this approach.
Bibliography of Canadian Geomorphology